in guideline Non-Proliferative Sickle Retinopathy Request inclusion into HPO below "Retinopathy/Sickle Retinopathy". http://en.wikipedia.org/wiki/Retinopathy SCDO (Jade Hotchkiss) http://eyewiki.aao.org/Sickle_Cell_Retinopathy None Sickle retinopathy caused by direct damage or remodeling of the small blood vessels supplying the retina secondary to vaso-occlusion and local ischemia. Sickle Retinopathy Recommendations for the Management of Sickle Cell Disease in South Africa Standards for Clinical Care of Adults with Sickle Cell Disease in the UK Sickle Cell Disease in Children, Standards and Guidelines for Clinic Care Evidence-Based Management of Sickle Cell Disease